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*Clique [aqui] para descarregar os Recursos de Mapas Offline.

Quer esteja a nadar, fazer snorkeling ou mergulho profundo, o TANK M4 destaca-se pelo seu design robusto. Para além do mergulho, suporta uma vasta gama de modos desportivos, com uma longa autonomia de bateria para treinos prolongados e mapas offline para manter todas as aventuras ao ar livre no caminho certo.
  • Resistência à água 10 ATM & IP69K com 3 modos de mergulho
  • Até 15 dias de autonomia de bateria
  • Certificação SGS, design em aço inoxidável Inox 360
  • Ecrã AMOLED de 1,96" com brilho automático
  • GNSS de seis sistemas com banda dupla para localização precisa
  • Com walkie-talkie e mapas offline
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Specification

Free & Fast Shipping

Up to 2-Year Warranty

Up to 30-Day Trial

24/7 The Best Support
NOVO

KOSPET TANK M4 Smartwatch

Preço promocional$209.99
Save $25

Celebração de Lançamento Ambassador: Adquira o seu novo TANK T4/M4 por $184.99— desconto aplicado automaticamente no checkout.

Promoção de Lançamento

Exclusive Site-Only Bundles: More for Less.

Why settle for just the watch? Unlock the ultimate T4/M4 experience with our curated bundles. Get the full setup—including premium accessories—for less than the price of a single unit elsewhere.
Cor: Preto
Pacote: Silicone Basic
Compatible Accessories
kospet_22mm_woven_nylon_sport_loop_strap#color_Silver Grey / Orange Stripe

Kospet 22mm Toca de nylon Sport Loop

Listra cinza prata/laranja
Listra cinza prata/laranja
$15.99 USD
0
KOSPET 22mm Premium Archlan Leather Strap#color_black

Kospet 22mm Toca de nylon Sport Loop

Castanho
Castanho
$19.99 USD
0
Kospet 22mm Camuflage tira

Kospet 22mm Camuflage tira

$15.99 USD
0
KOSPET <tc>TANK</tc> Película protetora T3 ULTRA 2

KOSPET TANK Película protetora T3 ULTRA 2

$12.99 USD
0
More
Members Only: 50% Off Accessories with Your Watch

Join our Rewards Club now! *Not valid with other product offers.

More KOSPET Membership Benefits | Earn Points Instantly & Redeem Free Accessories or Coupons

Sign up to become a KOSPET member and complete your purchase to unlock member bonus points instantly.

1. Get 50 bonus points instantly upon registration

2. Earn points based on your order value after purchase

3. Redeem accessories or coupons for FREE.
Upgrade your watch experience at no extra cost.
Frequently Bought Together
kospet-tank-s2-smartwatch-Strawflower-Black#color_Strawflower Black

KOSPET TANK Relógio inteligente S2 - Strawflower preto

$59.99 USD
$149.99 USD
0
kospet-tank-t3-ultra-2-smartwatch-silver-with-steel-straps#color_silver^package_Silicone + Steel Premium

KOSPET TANK Relógio inteligente T3 ULTRA 2 - Prata / Silicone + Aço Premium

$89.99 USD
$169.99 USD
0
More
Better Together: The Essential Duo

Why settle for one? Pair with our proven TANK S2 / TANK T3 Ultra 2 —perfect as a backup or a gift for a loved one.

Bundle & Save Big.

Please note, bundle offers here are NOT valid with other product bundle offers.
Would you like to add KOSPET CARE?
KOSPET CARE-1-Year Extended Warranty Plan for the Current Device

KOSPET CARE-1-Year Extended Warranty Plan for the Current Device

$19.99 USD

See what’s covered
More
The Ultimate Armor for Your KOSPET.

KOSPET CARE-1-Year Extended Warranty Plan for the Current Device:
Total peace of mind. Protect your watch from accidental damage and extend your warranty to 2 years.


KOSPET SHIELD-2-Year Extended Warranty Plan for All Devices：
Unlock Elite Protection. Unlimited accidental replacements for all your KOSPET devices plus a FREE Magic Watch.

See what’s covered
KOSPET CARE-1-Year Extended Warranty Plan for the Current Device

KOSPET CARE-1-Year Extended Warranty Plan for the Current Device

$19.99 USD

1 Device 24-Month Protection Plan $19.99

  • Extended to 30-Day-Trial
  • 2X Official Warranty
  • Extends your standard coverage to 24 months. We’ve got you covered for the long run.
  • Accidental Damage Protection Covers functional failures from accidental drops, collisions, or liquid contact (e.g., cracked screens).
  • 40% MSRP Replacement

Instead of buying a new watch at full price, replace your damaged unit for just 40% of the MSRP.

  • No-Return Protocol

Skip the hassle of international shipping. Just send us a verification video, and we’ll ship your replacement immediately.

  • Priority Support

Your claims move to the front of the line with our dedicated service team.
Activate in seconds. Stay protected for years.

Learn More
Would you like to add KOSPET CARE?
KOSPET SHIELD-2-Year Extended Warranty Plan for All the Devices

KOSPET SHIELD-2-Year Extended Warranty Plan for All the Devices

$89.99 USD

See what’s covered
More
The Ultimate Armor for Your KOSPET.

KOSPET CARE-1-Year Extended Warranty Plan for the Current Device:
Total peace of mind. Protect your watch from accidental damage and extend your warranty to 2 years.


KOSPET SHIELD-2-Year Extended Warranty Plan for All Devices：
Unlock Elite Protection. Unlimited accidental replacements for all your KOSPET devices plus a FREE Magic Watch.

See what’s covered
KOSPET SHIELD-2-Year Extended Warranty Plan for All the Devices

KOSPET SHIELD-2-Year Extended Warranty Plan for All the Devices

$89.99 USD

Elite Annual Pass for All Your KOSPET Devices $99.99 / Year

  • Extended to 30-Day-Trial
  • Unlimited Device Coverage One membership protects every KOSPET watch purchased within the last 24 months under this account.
  • FREE Welcome Gift Receive a FREE KOSPET Magic Watch ($129 value) immediately upon joining. The membership pays for itself.
  • Unlimited Accidental Replacements Enjoy unlimited claims for accidental damage with a low 40% MSRP service fee.
  • Theft & Loss Protection (Exclusive) First-ever coverage for lost or stolen devices. Re-purchase at 50% MSRP with a valid police report.
  • VIP Green Channel Direct access to our senior tech experts. 1-on-1 assistance within 24 hours.
  • Elite Member Rewards Get $120 in gift cards annually and 25% OFF on all new product launches.

One Membership. Total Protection. Endless Rewards.

Learn More
*Clique [aqui] para descarregar os Recursos de Mapas Offline.

Quer esteja a nadar, fazer snorkeling ou mergulho profundo, o TANK M4 destaca-se pelo seu design robusto. Para além do mergulho, suporta uma vasta gama de modos desportivos, com uma longa autonomia de bateria para treinos prolongados e mapas offline para manter todas as aventuras ao ar livre no caminho certo.
  • Resistência à água 10 ATM & IP69K com 3 modos de mergulho
  • Até 15 dias de autonomia de bateria
  • Certificação SGS, design em aço inoxidável Inox 360
  • Ecrã AMOLED de 1,96" com brilho automático
  • GNSS de seis sistemas com banda dupla para localização precisa
  • Com walkie-talkie e mapas offline
More Fold

Free & Fast Shipping

Up to 2-Year Warranty

Up to 30-Day Trial

24/7 The Best Support

KOSPET TANK M4 Smartwatch

Preto | Silicone Basic
Preço promocional$209.99
Overview

Built for New Depths

Built with 10 ATM and IP69K water resistance, it’s ready to dive with you.

Master Every Dive

Plunge into your diving excursions with three built-in dive modes and specialized dive data.

Tried and Tested Durability

Crafted with Inox 360 stainless steel, SGS-certified, and tested to 20 MIL-STD-810H standards.

Adaptive Visibility Day and Night

With an integrated ambient light sensor, the 1.96" AMOLED display remains clear under various lighting conditions.

Pro-Level Metrics for Peak Performance

Optimize your training and recovery with 23 ApexMotion sports modes and dedicated performance metrics.

Upgraded 24/7 Health Monitoring

Stay in tune with your body via the advanced 4PD sensor for more precise health measurements.

More Customization, Deeper Immersion

Access deeper health and fitness insights, exploration features, and personalized options in the Apexmove App.

Gold Winner at 2025 Product Design Awards

Celebrated for its innovative design that superbly blends style with performance, KOSPET TANK M4 won Gold awards at both the MUSE Design Awards and the London Design Awards.

Rugged Aesthetics Reinvented

Battle -50℃ extreme cold, outlast 70℃ blazing heat, endure humidity, shock, and more — KOSPET TANK M4 is a tactical smartwatch, tested by SGS, an independent European lab, against 20 U.S. MIL-STD-810H standards, ready for your most rugged adventures. An integrated ambient light sensor ensures its 1.96-inch AMOLED display remains clear from dawn to dusk.

AMOLED with Auto-Brightness

As magnificent as its 1.96-inch AMOLED display with peak brightness of 1000 nits, KOSPET TANK M4 features an embedded ambient light sensor that automatically adjusts the screen brightness based on the surrounding ambient light conditions.

410 × 502

Resolution

331

PPI

1,000nits

Peak Brightness

60Hz

Refresh Rate

Inox Shield Structure from Top to Bottom

From the bezel and the case to physical buttons, KOSPET TANK M4 is sculpted with an Inox 360 shield structure featuring full stainless steel construction, striking the perfect balance between exceptional strength and timeless design.

Proven Toughness,
SGS Tested

Tested and proven by SGS, the Europe’s leading independent lab, KOSPET TANK M4 demonstrates its superior resilience and toughness by passing up to 20 U.S. MIL-STD-810H tests. The rugged smartwatch thrives with you, however dusty, muddy, or rainy the adventure gets.

High-temperature
Operation Test

Low-temperature Operation Test

Salt Fog / Corrosive
Environments Test

Rain Test

Shock Test

Sand and Dust Test

Low Pressure Storage Test
Low Pressure Operation Test
High-temperature Storage Test
High-temperature Operating Test
Low-temperature Storage Test
Humidity Test
Fungus Test
Salt Fog / Corrosive Environments Test
Sand and Dust Test
Immersion Test
Low-temperature Operating Test
Temperature Shock Test
Contamination by Fluids Test
Solar Radiation Test
Rain Test
Vibration Test
Functional Shock Test
Transit Drop Test
Shock Test
Freeze-Thaw Test

Brave Deeper with
Confidence

With 10 ATM and IP69K water resistance ratings, KOSPET TANK M4 is not just a rugged smartwatch but also a reliable scuba diving watch alternative. It is built to endure 100-meter water pressure and support dives up to 45 meters—making every swim, surf, or dive worry-free.

10 ATM

Water Resistance

Tested by SGS, Europe's leading independent lab.

*Note: The smartwatch should not be worn during hot showers, in saunas, or during any other activities that involve high temperatures and/or high levels of humidity.

Delve Deeper with Ambition

Built to endure 10 ATM and IP69K conditions, the KOSPET TANK M4 functions as a versatile waterproof smartwatch, offering three dedicated dive modes to enrich your underwater experiences. Explore a wide array of diving metrics, including depth, dive time, ascent and descent rates, and more.

Freedive Mode

Scuba Dive Mode

Gauge Mode

Freedive Mode

Besides tracking surface intervals crucial for diving safety, KOSPET TANK M4 monitors each freediving session with data like dive time, maximum depth, and average temperature, complemented by its built-in breath-holding training and tests for improved stamina. Learn More »

Scuba Dive Mode

Preset parameters like oxygen percentage and PO2 limit on KOSPET TANK M4, and get a broader picture of your recreational scuba diving. Apart from underwater insights such as NDL, the smartwatch comes with safety stops and decompression stops to help you reduce the risk of decompression sickness. Learn More »

Gauge Mode

The Gauge mode on KOSPET TANK M4 functions as a basic bottom timer or as a backup to a dedicated dive computer. It displays dive time and depth to provide experienced divers with more control underwater. Learn More »

Maximize Your Sports Performance

Thanks to support for 23 ApexMotion sports modes and 160 freestyle training modes, KOSPET TANK M4 stands out among cool outdoor watches, serving to track your every movement and every effort through a broad range of specialized data — from real-time running metrics and elevation gain to pool laps and gym workouts.

Run Smart, Race Fast

From real-time pace and cadence during track running to VO2 max and recovery time in trail running, KOSPET TANK M4 assists you to measure your every move, every effort, and every improvement.

Cycle Your Way to Fitness

Speed, elevation gain, and training load — KOSPET TANK M4 captures the metrics that matter for both road and mountain cyclists. With 3D distance, vertical speed, and heart rate zones, you can take a closer look at every ride.

King of the Pool & Open Water

Swim faster and more efficiently with the KOSPET TANK M4, a rugged waterproof watch for swimming, in the pool or open water through calculations of SWOLF, lap count, and average pace, alongside automatic stroke identification, stroke rate, heart rate zones, and more.

Capture Every Glide

KOSPET TANK M4 tracks every shift in elevation while skiing, snowboarding, or cross-country skiing. It also monitors sliding distance, maximum speed, and heart rate, turning your day on the slopes into a full performance picture.

Ascend to New Heights

Whether it's a steep, rocky trail or a snow-covered summit, you can see the climb towards the peak on-screen and in numbers, including duration, heart rate, and calorie consumption.

More Modes in Action

From outdoor enthusiasts who enjoy hiking and tennis to gym-goers well on the way to reaching workout goals, stay fit and active with 160 freestyle training modes and auto-detection of 6 sports movements supported on KOSPET TANK M4.

Running

Cycling

Swimming

Skiing

Mountaineering

More Modes

Every Move Counts

With its advanced 6-axis gyroscope, KOSPET TANK M4 keeps up with your intense workouts and swift directional changes. It accurately captures shifts in motion, posture, and momentum — delivering more precise data, smarter activity analysis, and deeper insights into how your body performs when it matters most.

Stay Way Ahead of the Curve

KOSPET TANK M4 is designed for elite runners and those who aspire to push their limits. With support from precision dual-band (L1+L5) and six satellite positioning systems, the smartwatch tracks every lap in track running and every route during trail running with exceptional precision.

Full-Blown
Positioning Accuracy

To give a strong boost in positioning and keep pace with your performance, KOSPET TANK M4 leverages the brand new OPDR algorithm that tracks your real-time activity status despite weak or unavailable GPS signals — under bridges, among high-rise buildings, and other challenging conditions.

32GB Storage,
More Space for What Matters

KOSPET TANK M4 is a smartwatch with 32 storage capacity for impressive music and offline map storage. It holds about 100 offline maps or 5,000 songs, giving you both navigation and entertainment without relying on your phone—perfect for staying informed and inspired on the go.

*Disclaimer: Actual available storage may be less than 32GB due to system software. Music and map capacity varies based on file format, quality, and usage conditions.

Route Import
& Offline Map Support

Chart and navigate your own path with KOSPET TANK M4 — import GPX or KML route files via the Apexmove App or download offline maps online using your computer or tablet.

Stay in Touch with
Walkie-talkie

Whether you are cycling through the woods or hiking along a trail with your friends, use the built-in Walkie-talkie on KOSPET TANK M4 to instantly communicate with each other via a simple touch-and-hold.

*Range may vary with environmental conditions.

Shed More Light on Your Health

Powered by the cutting-edge 4PD health sensor that captures richer optical signals for improved measurement precision, KOSPET TANK M4 elevates daily health monitoring to a whole new level, even during high-intensity workouts.

24H Wrist-based Health
Management

24H Wrist-based Health Management

Heart Rate Monitoring

Stay informed about your heart health with all-day heart rate monitoring and abnormal heart rate alerts, all supported on the KOSPET TANK M4, a rugged waterproof heart rate monitor watch built for both daily use and outdoor adventures.

Blood Oxygen Monitoring

KOSPET TANK M4 measures your SpO2 throughout the day with low blood oxygen alerts to keep an eye on the condition of your respiratory system.

Sleep Tracking

Create a sleep schedule that suits you and wake up to your sleep progress and total time spent in main sleep stages (including REM) on KOSPET TANK M4.

Menstrual Cycle Tracking

KOSPET TANK M4 tracks your menstrual cycle for better health with predictions and reminders for your upcoming period, fertile window, and ovulation day.

One-Tap Health Check

Easily monitor your heart rate, blood oxygen, stress level, and mood with a single tap on KOSPET TANK M4 for a comprehensive overview of your health status.

Keep Pace
with You for Longer

With up to 15 days of typical use, KOSPET TANK M4 is a smartwatch with long battery life meticulously built to perform in peak condition, so you never have to worry about power between charges while moving, training, or exploring.

14-15
Days up to

Typical Usage

Typical Use Battery Life

21-22
Hours up to

Continuous GPS Usage

Continuous GPS Usage

9-10
Days up to

Heavy Use

Heavy Use Battery Life

5-6
Days up to

AOD Mode

AOD Mode Battery Life

Power On,
Power Through

Lightweight, compact, and easy-to-store, our new power pocket can deliver more than one full charge for KOSPET TANK M4. Featuring a magnetic connector, the power pocket allows for simultaneous charging with the smartwatch.

*Note: The portable power pocket is sold separately.

850 mAh

>1 full charge

UP TO 50 Days

Battery Life

*Note: The portable power pocket is sold separately.

850 mAh

>1 full charge

50
up to Days

Battery Life

Get a brand new experience in

ApexmoveOS

Powered by

ApexmoveOS
Immerse yourself in the intuitive, interactive, and personalized user experience presented by our self-developed Apexmove OS, where you can tap into more health and fitness insights, manage routes and offline maps, and explore more possibilities in the Apexmove App.
With a vast array of customizable health, fitness, and exploration features at your fingertips, the Apexmove OS helps you stride towards a more balanced lifestyle — from fitness badges to seamless sync with third-party apps like Strava.

The user-centered Apexmove App provides in-depth health and fitness data recorded by KOSPET TANK M4, and enables you to customize training plans and feature cards, create your own routes or location points, and so much more.

Forge & Navigate Your Own Trail

Explore your favourite spots or navigate off the beaten path with KOSPET TANK M4 by importing GPX/KML files or creating routes in the Apexmove App.

Progress Within Your Reach

Customize settings around your goals and gain daily insights directly via the Apexmove App to track your health and fitness progress.

Enjoy the Beat Anytime, Anywhere

Add your favourite tracks and playlists to the Apexmove App and sync them straight to KOSPET TANK M4 — no phone needed.

Train Your Way Up

Personalize your training plans in the Apexmove App for optimal training routine and improve your effectiveness with a series of free online training courses.

Dial Up Your Style

Download watch faces that suit your style from hundreds of dazzling options (including paid watch faces) available in the Apexmove App.

Create
Your Unique Look

Head to the Apexmove App and customize your watch face for KOSPET TANK M4 by switching between different widgets, themes, and layouts. Tailor every detail to craft the perfect look.

Built-in

Information

Sporty

Futuristic

Vintage

Minimal

Fashionable

Editable Watch Dial

Customize your watch face by switching widgets for date, calories, battery level, and more.

Personalized Watch Dial

Upload your favourite image to the Apexmove App and set it as your watch face.

AOD Watch Dial

Customize and schedule your AOD watch face, or let it match the current theme.

Three Icon Theme Options

Choose from three distinct icon‑based UI themes that go with your style and vibe.

Customizable Shortcut Cards

Feel free to manage shortcut cards and access most-used features with a simple swipe.

Six Menu Layouts & Three Transition Animations

Select from six menu styles and three transition effects for your preferred system look and feel.

Eco-friendly Packaging
Inside and Out

At KOSPET, we strive to incorporate environmental sustainability into every piece of our product and contribute to a more sustainable future. KOSPET TANK M4 comes packaged in 100% environmentally-friendly materials, ranging from a recyclable nylon watch strap to printing and packaging free from mineral oils.

*Coral adoption certificate courtesy of Coral Guardian

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